Hatmaker, Charles
Current rating: 1453
Record: 11-14
| Grand Prix Louisville 2013 (THS standard) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 120 | Pfender, Edward (1648) | Won 2-0 | +211510 |
| 4standard | 115 | Dalton, Todd (1554) | Lost 0-2 | -171493 |
| 5standard | 276 | Williamson, Scott (1288) | Lost 0-2 | -221471 |
| 6standard | 299 | Cross, Nathan (1479) | Lost 1-2 | -181453 |
| top | average opponent: 1492record: 1-3 | new rating: 1453 | ||
| Grand Prix Nashville 2012 (DKA limited) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 3 | Dowse, Bryan (1618) | Lost 1-2 | -161508 |
| 5sealed | 161 | Rudyak, Rada (1524) | Lost 0-2 | -181490 |
| 6sealed | 233 | Crawford, Peter J (1516) | Won 2-0 | +181508 |
| 7sealed | 236 | Seigman, Daniel (1446) | Lost 1-2 | -191489 |
| top | average opponent: 1526record: 1-3 | new rating: 1489 | ||
| Grand Prix Atlanta 2008 (ALA limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 31 | Werner, Nicholas (1604) | Won 2-1 | +191538 |
| 2sealed | 75 | Mead, Forrest (1580) | Lost 0-2 | -171521 |
| 3sealed | 149 | Liao, Zhi (1576) | Lost 0-2 | -171504 |
| 4sealed | 230 | Lacoste, Steven (1482) | Won 2-0 | +181522 |
| 5sealed | 166 | Gfroerer, Alex (1518) | Won 2-0 | +181540 |
| 6sealed | 106 | Watson, Daniel (1505) | Won 2-0 | +171557 |
| 7sealed | 85 | Rasmussen, Ben (1732) | Lost 0-2 | -151542 |
| 8sealed | 105 | Green, Terry (1516) | Lost 0-2 | -181524 |
| top | average opponent: 1564record: 4-4 | new rating: 1524 | ||
| Grand Prix Denver 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 145 | Moynihan, Kevin (1500) | Lost 0-2 | -181482 |
| 2block | 214 | Fusco, Arthur (1482) | Lost 0-2 | -181464 |
| 3block | 276 | Thompson, Keith (1495) | Lost 0-2 | -171447 |
| 4block | 294 | Bondurant, Ben (1445) | Won 2-0 | +181465 |
| 5block | 266 | Naujoks, Brian (1465) | Won 2-1 | +181483 |
| 6block | 209 | Bingham, Tyrel (1485) | Lost 1-2 | -181465 |
| 7block | 178 | Duke, David (1483) | Won 2-0 | +181483 |
| 8block | 147 | Martinez, Thomas (1482) | Won 2-0 | +181501 |
| 9block | 105 | Wrisley, Robert (1501) | Won 2-0 | +181519 |
| top | average opponent: 1482record: 5-4 | new rating: 1519 | ||